Finding the Fourth Proportional to 216,403.56, 324,575.06 and 74,246.49
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Solution
The fourth proportional to 216,403.56, 324,575.06 and 74,246.49 is: 111,359.34
Step by Step Solution
- Step 1: Write the proportion equation
216,403.56 : 324,575.06 = 74,246.49 : x - Step 2: Convert to fraction form
216,403.56/324,575.06 = 74,246.49/x - Step 3: Cross multiply
216,403.56x = 324,575.06 × 74,246.49 - Step 4: Simplify right side
216,403.56x = 24,098,558,575.31 - Step 5: Solve for x
x = 24,098,558,575.31/216,403.56 - Step 6: Final answer
x = 111,359.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.